发明名称 |
Vehicle communication system using existing roadway loops |
摘要 |
A method and system for transferring information between a moving vehicle and a stationary information location having a vehicle detector system with a loop antenna by using the loop antenna as either the receiving antenna for signals transmitted from a moving vehicle or as the transmitting antenna for signals generated by a transmitter located at the vehicle detector site for transfer to a receiver mounted on a moving vehicle. The information is encoded on a carrier having a frequency outside the normal frequency range of the vehicle detector system, preferably by interrupted carrier pattern processing.
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申请公布号 |
US4731867(A) |
申请公布日期 |
1988.03.15 |
申请号 |
US19860854376 |
申请日期 |
1986.04.21 |
申请人 |
DETECTOR SYSTEMS, INC. |
发明人 |
SEABURY, THOMAS W.;POTTER, THOMAS |
分类号 |
G06K7/00;G07C5/00;G08G1/042;H04B5/00;(IPC1-7):H04B5/00 |
主分类号 |
G06K7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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